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CSXG250

Bore
635 mm
Outer
685.5 mm
Width
25.4 mm
Wight
8.83 kg
Four point, Thin section ball bearing CSXG
A single unit can bear radial, bidirectional axial and overturning moment loads. It has a compact and lightweight structure and is often used in high-precision applications with limited space, such as industrial robots, medical equipment and semiconductor manufacturing.

Main technical Specifications

New Designations :
CSXG250
Main demensions :
635 × 685.5 × 25.4
Bore Dia × Outside Dia × Width Dia (mm)
M :
8.83 kg
Weight
ID :
635 mm
Inside diameter(I.D.)
OD :
685.5 mm
Outside diameter(O.D.)
T(B) :
25.4 mm
Thickness(W.D.)
Cr :
95.886 kN
Radial dynamic load rating
C0r :
298.984 kN
Radial static load rating
Oil rpm :
321 r/min
Limiting speed
Category :
Thin section four-point contact ball bearings

Detailed parameters and installation dimensions:

Part Number CSXG250
Units Inch
Design CS = Thin Section Series
Dynamic Radial Capacity - Cr 95886 N | 21555 lbf
Static Radial Capacity - C0r 298984 N | 67211 lbf
Shaft diameter 635 mm | 25.0000 inch
Contact type X = 4 Point Contact
CROSS SECTION (section x width) G = 25.4 x 25.4 mm
Series CSXG
Dimension - D1 667 mm | 26.2598 inch
Dimension - d1 653.9 mm | 25.7440 inch
Dimension - r(min) 2 mm | 0.0787 inch
Balls Material AISI 52100 steel
Surface hardnesses inner and outer rings(-58 +4 HRC), balls(-62 +4 HRC)
Cage Solid brass (snap cage)
Ball Diameter 1/2 "
Cross Section Size 1"
Temperature - T(min) -30 °C
Temperature - T(max) 120 °C
Bore Type Cylindrical Bore
Ring Material AISI 52100 steel
Dimension Inside - d φ 635 mm | 25.0000 inch
Dimension Outside - D Φ 685.5 mm | 26.9881 inch
Dimension Width - B 25.4 mm | 1.0000 inch
Rows NO. One
Load RADIAL(Poor), AXIAL(Good), MOMENT(Excellent)
Accuracy class PL1
Manufacturer Part Code CSXG 250
Bearing Type Four point, Thin section ball bearing CSXG
Bearing Mass - m 8.83 kg | 19.4666 lb
RIC PL1
logistical code HLE
Speed ratings (oil) - nG 321 min–1
Seal Open
Contact angle - α 30 °
Lubricant No

NOTE: All other trademarks are the property of their respective owners, used for the purpose of compatibility description and product identification only. Tradebearings is not affiliated with, endorsed by, or sponsored by the holders of these trademarks.

CSXG250 refers to a type of CSXG large Four point, Thin section ball bearing CSXG, with dimensions 635 mm (Bore) x 685.5 mm (OD) x 25.4 mm (Width), designed for space and saving weight, primarily used in Robot joints, aerospace, precision equipment, Its normal operating speed can reach: oil speed ratings: 321 rpm, featuring One (row) construction, Solid brass (snap cage) retainer to ensure extended service life, advanced Open, PL1 (precision) for applications Extremely limited space offering precise, lightweight, smooth rotation and efficient power transmission.. it's built to handle significant loads (dynamic radial: 95886 N, static radial: 298984 N, ), It weight approximately 8.83 kilogram.

  • Min. Order: 1 Piece/(CSXG250, 635 = ID, 685.5 = OD, 25.4 = B, 8.83 kg) or according to different suppliers
  • Price: Different brands, different quality, different CSXG250 prices, different suppliers and different quality determine different prices, you can ask the supplier in detail for the price according to your own needs.
  • Precision Rating: DIN: P2~P0; ANSI: ABEC9~ABEC1; JIS: JIS~JIS0; ISO: CLASS2~NORMAL CLASS; GB/T30794 B~G
  • Inquiry ways: The right of the inquiry form, Email, skype, Whatsapp

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Hello, We need Bearing :- N1012 (STRAIGHT BORE WITH CERAMIC BALLS) - NSK JAPAN - 02 piece.

✨What are the Benefits of choosing CSXG250 bearings?

  • Composite Load Capacity: Utilizing a Gothic arched raceway design, the steel balls and raceways form four-point contact, enabling simultaneous bearing of radial loads, bidirectional axial loads, and overturning moments.
  • Space Saving: One four-point contact bearing can replace a pair of back-to-back angular contact ball bearings; the axial width is equivalent to only one set of bearings, significantly saving space.
  • Lightweight Design: A thin-walled structure with a constant cross-sectional dimension results in a weight approximately 5% that of a standard bearing of the same inner diameter.
  • High Operational Precision: Smooth operation and low frictional torque improve robot motion stability by over 10%.
  • Sealing Options: Embedded seals are available to prevent grease leakage and contaminant ingress, extending service life.
  • The CSXG250 Thin section four-point contact ball bearings adopts a space and saving weight design, Reference INA technology, with dimensions an inner diameter of 635 mm, an outer diameter of 685.5 mm, a width of 25.4 mm, featuring One (row) construction from CSXG (series), optimal operating temperature is generally -30 to 120 degrees Celsius. With grade precision of PL1 and a clearance of PL1, ensure the equipment operates more stably , and the maximum speed can reach ( Limit Speed Ratings (oil) rpm:321)for applications Extremely limited space offering precise, lightweight, smooth rotation and efficient power transmission.

🏭 What are the applications of the CSXG250 bearing?

  • Industrial Robots: Robot waist, elbow, and wrist joints achieve compact layout and high-precision smooth movement, significantly improving motion stability.
  • Medical Equipment: CT scanners, X-ray equipment, surgical robots; low friction and low noise improve imaging quality and operational comfort.
  • Semiconductor Equipment: Vacuum handling robot joints; low exhaust, corrosion resistance, suitable for vacuum clean environments.
  • Optics and Precision Instruments: Camera pan-tilt units, astronomical instruments, optical scanning equipment; lightweight design ensures precise pointing.
  • Aerospace and Communications: Satellite communication equipment, radar systems, antenna bases; high reliability meets stringent requirements.

📐 How should choose the right model for a Thin section four-point contact ball bearings?

Type Selection: Choose according to load type—C type (deep groove ball) for radial loads; A type (angular contact) for unidirectional axial loads; X type (four-point contact) for torque or bidirectional axial loads.

Accuracy Class: Select ABEC grade (e.g., ABEC 1, 5, 7) according to equipment requirements. Higher accuracy results in smoother operation.

Size Determination: Determine the cross-sectional dimensions and bore diameter based on installation space constraints. Thin-walled bearings offer advantages such as thin cross-section and light weight.

Match Tolerances: Slight interference fit (e.g., J5, K6) is typically selected for rotating rings, while clearance fit (e.g., H7) is selected for stationary rings to avoid excessive preload.

🛠️ What is the mounting procedure for CSXG250 bearings?

Cleaning Inspection: Clean the bearing and mounting area in a clean environment, checking the shaft and housing bore dimensions, roundness, and for burrs.

Lubrication: Apply an appropriate amount of lubricant (grease or oil). For unsealed bearings, remove the rust-preventive oil first.

Installation: Apply pressure evenly using a special sleeve, pressing only onto the interference fit rings; for large interference fits, hot fitting (≤120℃) or cold fitting can be used.

Securing Inspection: Secure with end caps or nuts, ensuring the pressing surfaces are parallel; manually rotate to check flexibility and operating noise.

Preload Adjustment (if required): When using angular contact pairs, adjust the preload to the specified value by grinding the spacers or shims.

📋 Special Note for mounting CSXG250 bearings?

Do not strike: Directly striking the bearing is strictly prohibited. Use a specialized tool to apply pressure evenly.

Sensitive fit: Thin-walled bearings are extremely sensitive to fit precision. Excessive interference fit can lead to loss of clearance, overheating, and seizing.

Clean environment: Maintain a clean and dust-free operating environment. Wear gloves to prevent corrosion from sweat.

Sealed bearings: Bearings with seals are pre-lubricated at the factory and should not be cleaned before installation.

Rust-proof storage: Store in an environment with a temperature of approximately 20℃ and humidity ≤65%. Avoid direct contact with the ground.

Comments

  1. zhongheng bearing co.,ltd
    Email: [email protected] Tel: 86-635-2319970 Mob No.:+86 13963515020 2018-12-05

    MODEL:CSXG250 Thin section four-point contact ball bearings Price: you need competitive price, please contact me, delivery date: stock, precision: good, 30 years professional bearing factory, waiting for your inquiry at any time.
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Other models the same size : 635x685.5x25.4

CSXG250-HLE

Thin section four-point contact ball bearings   635 * 685.5 * 25.4 , Cr: 94.94, C0r: 299.792, Oil rpm: 327, M: 8.83